#46 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com The socket is protected against

The socket is protected against corrosion with chrome plating on the outside and chrome plating supplemented with a clear coat or painted finish where needed for full coverage on the inside

TEMPERATURE RATING:20° F / -7° C

Meets or exceeds industry specification ANSI/ASME B107

Part Number: DUR308B-95

Part Number: Assortment Kit #397

#46 x 12" Cobalt Aircraft Extension Drill Bit BoltsandNuts.com The socket is protected againstProduct Description Cobalt drill bits are are effective in drilling tough, high tensile strength materials such as cast iron, inconel, stainless steel and titanium. They display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. They have a 135 split point tip for fast penetration and accurate drilling. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. Ideal for drilling